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INSTALLATION
INSTALLATION
11 WATER CONNECTIONS
R
RB
72mm
60mm
R
Solar circuit return (3/4" M). Outlet of heat transfer
fluid towards solar collector.
RB
Storage system return (3/4" M). Inlet of heat transfer
fluid from solar storage system.
SV
Safety valve drain
VE
Expansion tank fitting
E
Solar expansion tank (not supplied)
T
Safety valve outlet pipe (not supplied)
− Connect the return fitting (R) in the upper part of the so-
lar station to the solar plant
− Connect the return fitting (RB) in the lower part of the
solar station to the accumulation system
− Connect the safety valve drain to a pipe (T) to avoid burns
from expelled fluid and to permit the heat transfer fluid
to be recovered
− Connect expansion tank (E), suitable for solar plant ap-
plications, to 1/2" fitting (VE).
9
Fasten expansion tank as explained in the instruction sheet
supplied with the accessory.
9
For hydraulic connections, use silicone seals having a hard-
ness of at least 80SH. If no seals can be used, seal fittings
with high-temperature sealant (>180°C) suitable for solar
applications.
12 PUMP CONTROLLER
The circulator leaves the factory configured for management
with "direct speed control function" and with a maximum dis-
charge head of 7.5m (bend 4).
SV
USER INTERFACE
T
VE
The user interface consists of a push-button (1), a red/green LED
(2) and four yellow LEDs (3).
When necessary, the user interface provides access to:
E
FUNCTIONING MODE
Performance display
When the pump is running, LED no.1 is green. The four yellow
LEDs indicate the pump's instantaneous electrical power con-
sumption as shown in the table.
Nr. displayed
LED 1 flashing green
LED 1 green and LED 2 yellow,
both lit
LED 1 green and LEDs 2, 3 yel-
low, all lit
LED 1 green, LEDs 2, 3, 4 yel-
low, all lit
LED 1 green, LEDs 2, 3, 4, 5
yellow, all lit
6
1
− Functioning (performance display) mode. Pump perfor-
mance is displayed during functioning as a % of current
draw with respect to rated load. Alarm conditions can be
seen from the colour of LED.
− Setting Mode: Press button (1) to enter setting mode and
select the type of pump curve.
2
3
Meaning
% power
Stand-by
0
Low load
0-25
Low-medium
25-50
load
Medium-high
50-75
load
High load
75-100
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